The only bushings that might need replaced are the front suspensions rear control arm, rear suspensions torque rod and trailing arm bushings. Other bushings rarely go bad or do so at much higher mileage.

I would and do use poly on the control arm and torque rods and use Boge rubber on the trailing arm. This use of poly does not affect ride or noise quality. I have done this on five 240's the oldest has been in service for 4 years with no problems.
Dan